How can I change the colours of the “Add to cart” button?
You can easily change and personalize the Add to Cart button of the app to better match your theme. For the Frequently Bought Together app, we can edit the text color and the background color.
To do so, please open the app preferences page and navigate to the Visual styles → Add to Cart button section.
There you will find the option to change the text and background color, as showed below:

You can easily select your preferred color using the tool showed below, or you can copy the color name/code.

Lastly, please remember to click on Save, so the changes can be successfully applied.